Device and method for evaluating operating conditions of briquetting machine, briquetting machine, method for manufacturing briquette, control device of briquetting machine, control method of briquetting machine, and program

Abstract

An evaluation device (20) evaluates the operating conditions of a briquetting machine (10). The evaluation device (20) includes an evaluation information acquisition unit (220) and an evaluation data generation unit (230). The evaluation information acquisition unit (220) acquires a plurality of pieces of evaluation information indicating the evaluation results of a plurality of briquettes manufactured under the same manufacturing conditions by the briquetting machine (10). The evaluation data generation unit (230) generates evaluation data that is data obtained by comparing a plurality of pieces of evaluation information with each other.

The invention claimed is: 
     
       1. A briquetting machine, comprising:
 a granulation unit that operates under set operating conditions to manufacture briquettes; 
 an acquisition unit that acquires evaluation information indicating evaluation results of the plurality of briquettes manufactured under the same manufacturing conditions; and 
 a setting unit that sets the operating conditions based on the evaluation information, 
 wherein in the evaluation information, values of a plurality of measured evaluation parameters are associated with each briquette, 
 the plurality of evaluation parameters include a first evaluation parameter and a second evaluation parameter, 
 the setting unit determines whether or not to change the operating conditions set in advance by comparing an evaluation value, which is based on a distribution of a plot in a case of plotting the evaluation results of the plurality of briquettes on a graph in which the first evaluation parameter is on a first axis and the second evaluation parameter is on a second axis, with a predetermined reference, 
 the evaluation value includes at least one of a length of a long axis, a length of a short axis, and an inclination of the long axis of a probability ellipse in the case of plotting the evaluation results of the plurality of briquettes on the graph in which the first evaluation parameter is on the first axis and the second evaluation parameter is on the second axis, 
 the granulation unit includes two rolls facing each other and a raw material supply unit that supplies a raw material between the two rolls, 
 a recessed portion for manufacturing the briquette is formed on at least one of surfaces of the two rolls, 
 the first evaluation parameter is an apparent density of the briquette, and the second evaluation parameter is any of a compressive strength, a tumbler strength, and a drop strength of the briquette, 
 the setting unit determines whether or not to change a raw material supply amount per unit time of the raw material supply unit as the operation parameter in a case where the evaluation value is the length of the long axis, and 
 in a case where the length of the long axis is larger than the predetermined reference, the setting unit adjusts the operating conditions so as to increase the raw material supply amount, and in a case where the length of the long axis is not larger than the predetermined reference, the setting unit does not change the raw material supply amount. 
 
     
     
       2. A briquetting machine, comprising:
 a granulation unit that operates under set operating conditions to manufacture briquettes; 
 an acquisition unit that acquires evaluation information indicating evaluation results of the plurality of briquettes manufactured under the same manufacturing conditions; and 
 a setting unit that sets the operating conditions based on the evaluation information, 
 wherein in the evaluation information, values of a plurality of measured evaluation parameters are associated with each briquette, 
 the plurality of evaluation parameters include a first evaluation parameter and a second evaluation parameter, 
 the setting unit determines whether or not to change the operating conditions set in advance by comparing an evaluation value, which is based on a distribution of a plot in a case of plotting the evaluation results of the plurality of briquettes on a graph in which the first evaluation parameter is on a first axis and the second evaluation parameter is on a second axis, with a predetermined reference, 
 the evaluation value includes at least one of a length of a long axis, a length of a short axis, and an inclination of the long axis of a probability ellipse in the case of plotting the evaluation results of the plurality of briquettes on the graph in which the first evaluation parameter is on the first axis and the second evaluation parameter is on the second axis, 
 the granulation unit includes two rolls facing each other and a raw material supply unit that supplies a raw material between the two rolls, 
 a recessed portion for manufacturing the briquette is formed on at least one of surfaces of the two rolls, 
 the first evaluation parameter is an apparent density of the briquette, and the second evaluation parameter is any of a compressive strength, a tumbler strength, and a drop strength of the briquette, 
 the setting unit determines whether or not to change pressure, which is applied to a raw material located between the two rolls through the two rolls, as the operation parameter in a case where the evaluation value is the length of the short axis, and 
 in a case where the length of the short axis is larger than the predetermined reference, the setting unit adjusts the operating conditions so as to reduce the pressure, and in a case where the length of the short axis is not larger than the predetermined reference, the setting unit does not change the pressure. 
 
     
     
       3. A briquetting machine, comprising:
 a granulation unit that operates under set operating conditions to manufacture briquettes; 
 an acquisition unit that acquires evaluation information indicating evaluation results of the plurality of briquettes manufactured under the same manufacturing conditions; and 
 a setting unit that sets the operating conditions based on the evaluation information, 
 wherein in the evaluation information, values of a plurality of measured evaluation parameters are associated with each briquette, 
 the plurality of evaluation parameters include a first evaluation parameter and a second evaluation parameter, 
 the setting unit determines whether or not to change the operating conditions set in advance by comparing an evaluation value, which is based on a distribution of a plot in a case of plotting the evaluation results of the plurality of briquettes on a graph in which the first evaluation parameter is on a first axis and the second evaluation parameter is on a second axis, with a predetermined reference, 
 the evaluation value includes at least one of a length of a long axis, a length of a short axis, and an inclination of the long axis of a probability ellipse in the case of plotting the evaluation results of the plurality of briquettes on the graph in which the first evaluation parameter is on the first axis and the second evaluation parameter is on the second axis, 
 the granulation unit includes two rolls facing each other and a raw material supply unit that supplies a raw material between the two rolls, 
 a recessed portion for manufacturing the briquette is formed on at least one of surfaces of the two rolls, 
 the first evaluation parameter is an apparent density of the briquette, and the second evaluation parameter is any of a compressive strength, a tumbler strength, and a drop strength of the briquette, 
 the setting unit determines whether or not to change pressure, which is applied to a raw material located between the two rolls through the two rolls, as the operation parameter in a case where the evaluation value is the inclination of the long axis, and 
 in a case where the inclination of the long axis is smaller than the predetermined reference, the setting unit adjusts the operating conditions so as to increase the pressure, and in a case where the inclination of the long axis is not smaller than the predetermined reference, the setting unit does not change the pressure. 
 
     
     
       4. A briquetting machine, comprising:
 a granulation unit that operates under set operating conditions to manufacture briquettes; 
 an acquisition unit that acquires evaluation information indicating evaluation results of the plurality of briquettes manufactured under the same manufacturing conditions; and 
 a setting unit that sets the operating conditions based on the evaluation information, 
 wherein in the evaluation information, values of a plurality of measured evaluation parameters are associated with each briquette, 
 the plurality of evaluation parameters include a first evaluation parameter and a second evaluation parameter, 
 the setting unit determines whether or not to change the operating conditions set in advance by comparing an evaluation value, which is based on a distribution of a plot in a case of plotting the evaluation results of the plurality of briquettes on a graph in which the first evaluation parameter is on a first axis and the second evaluation parameter is on a second axis, with a predetermined reference, 
 the evaluation value includes at least one of a length of a long axis, a length of a short axis, and an inclination of the long axis of a probability ellipse in the case of plotting the evaluation results of the plurality of briquettes on the graph in which the first evaluation parameter is on the first axis and the second evaluation parameter is on the second axis, 
 the granulation unit includes two rolls facing each other and a raw material supply unit that supplies a raw material between the two rolls, 
 a recessed portion for manufacturing the briquette is formed on at least one of surfaces of the two rolls, 
 the first evaluation parameter is any of a compressive strength, a tumbler strength, and a drop strength of the briquette, and the second evaluation parameter is a unit weight of the briquette, 
 the setting unit determines whether or not to change at least one of a rotation speed of each of the two rolls and pressure, which is applied to a raw material located between the two rolls through the two rolls, as the operation parameters in a case where the evaluation value is the inclination of the long axis, and 
 in a case where the inclination of the long axis is larger than the predetermined reference, the setting unit adjusts the operating conditions so as to reduce the rotation speed or increase the pressure, and in a case where the inclination of the long axis is equal or smaller than the predetermined reference and a raw material supply amount per unit time of the raw material supply unit is not an upper limit, the setting unit changes neither the rotation speed nor the pressure. 
 
     
     
       5. A control device of a briquetting machine that operates under set operating conditions to manufacture briquettes, comprising:
 an acquisition unit that acquires evaluation information indicating evaluation results of the plurality of briquettes manufactured under the same manufacturing conditions; and 
 a setting unit that sets the operating conditions based on the evaluation information, 
 wherein in the evaluation information, values of a plurality of measured evaluation parameters are associated with each briquette, 
 the plurality of evaluation parameters include a first evaluation parameter and a second evaluation parameter, 
 the setting unit determines whether or not to change the operating conditions set in advance by comparing an evaluation value, which is based on a distribution of a plot in a case of plotting the evaluation results of the plurality of briquettes on a graph in which the first evaluation parameter is on a first axis and the second evaluation parameter is on a second axis, with a predetermined reference, 
 the evaluation value includes at least one of a length of a long axis, a length of a short axis, and an inclination of the long axis of a probability ellipse in the case of plotting the evaluation results of the plurality of briquettes on the graph in which the first evaluation parameter is on the first axis and the second evaluation parameter is on the second axis, 
 the briquetting machine includes two rolls facing each other and a raw material supply unit that supplies a raw material between the two rolls, 
 a recessed portion for manufacturing the briquette is formed on at least one of surfaces of the two rolls, 
 the first evaluation parameter is an apparent density of the briquette, and the second evaluation parameter is any of a compressive strength, a tumbler strength, and a drop strength of the briquette, 
 the setting unit determines whether or not to change a raw material supply amount per unit time of the raw material supply unit as the operation parameter in a case where the evaluation value is the length of the long axis, and 
 in a case where the length of the long axis is larger than the predetermined reference, the setting unit adjusts the operating conditions so as to increase the raw material supply amount, and in a case where the length of the long axis is not larger than the predetermined reference, the setting unit does not change the raw material supply amount. 
 
     
     
       6. A control method of a briquetting machine that operates under set operating conditions to manufacture briquettes by the control device according to  claim 5 , comprising:
 an acquisition step of acquiring evaluation information indicating evaluation results of the plurality of briquettes manufactured under the same manufacturing conditions; and 
 a setting step of setting the operating conditions based on the evaluation information, 
 wherein the evaluation information includes a first evaluation parameter and a second evaluation parameter, and 
 in the setting step, whether or not to change the operating conditions set in advance is determined by comparing an evaluation value, which is based on a distribution of a plot in a case of plotting the evaluation results of the plurality of briquettes on a graph in which a first evaluation parameter is on a first axis and a second evaluation parameter is on a second axis, with a predetermined reference. 
 
     
     
       7. A method of manufacturing briquettes using the briquetting machine according to  claim 1 , comprising:
 an acquisition step of acquiring evaluation information indicating evaluation results of the plurality of briquettes manufactured under the same manufacturing conditions; and 
 a setting step of setting the operating conditions based on the evaluation information, 
 wherein the evaluation information includes a first evaluation parameter and a second evaluation parameter, and 
 in the setting step, whether or not to change the operating conditions set in advance is determined by comparing an evaluation value, which is based on a distribution of a plot in a case of plotting the evaluation results of the plurality of briquettes on a graph in which a first evaluation parameter is on a first axis and a second evaluation parameter is on a second axis, with a predetermined reference. 
 
     
     
       8. A control device of a briquetting machine that operates under set operating conditions to manufacture briquettes, comprising:
 an acquisition unit that acquires evaluation information indicating evaluation results of the plurality of briquettes manufactured under the same manufacturing conditions; and 
 a setting unit that sets the operating conditions based on the evaluation information, 
 wherein in the evaluation information, values of a plurality of measured evaluation parameters are associated with each briquette, 
 the plurality of evaluation parameters include a first evaluation parameter and a second evaluation parameter, 
 the setting unit determines whether or not to change the operating conditions set in advance by comparing an evaluation value, which is based on a distribution of a plot in a case of plotting the evaluation results of the plurality of briquettes on a graph in which the first evaluation parameter is on a first axis and the second evaluation parameter is on a second axis, with a predetermined reference, 
 the evaluation value includes at least one of a length of a long axis, a length of a short axis, and an inclination of the long axis of a probability ellipse in the case of plotting the evaluation results of the plurality of briquettes on the graph in which the first evaluation parameter is on the first axis and the second evaluation parameter is on the second axis, 
 the briquetting machine includes two rolls facing each other and a raw material supply unit that supplies a raw material between the two rolls, 
 a recessed portion for manufacturing the briquette is formed on at least one of surfaces of the two rolls, 
 the first evaluation parameter is an apparent density of the briquette, and the second evaluation parameter is any of a compressive strength, a tumbler strength, and a drop strength of the briquette, 
 the setting unit determines whether or not to change pressure, which is applied to a raw material located between the two rolls through the two rolls, as the operation parameter in a case where the evaluation value is the length of the short axis, and 
 in a case where the length of the short axis is larger than the predetermined reference, the setting unit adjusts the operating conditions so as to reduce the pressure, and in a case where the length of the short axis is not larger than the predetermined reference, the setting unit does not change the pressure. 
 
     
     
       9. A control device of a briquetting machine that operates under set operating conditions to manufacture briquettes, comprising:
 an acquisition unit that acquires evaluation information indicating evaluation results of the plurality of briquettes manufactured under the same manufacturing conditions; and 
 a setting unit that sets the operating conditions based on the evaluation information, 
 wherein in the evaluation information, values of a plurality of measured evaluation parameters are associated with each briquette, 
 the plurality of evaluation parameters include a first evaluation parameter and a second evaluation parameter, 
 the setting unit determines whether or not to change the operating conditions set in advance by comparing an evaluation value, which is based on a distribution of a plot in a case of plotting the evaluation results of the plurality of briquettes on a graph in which the first evaluation parameter is on a first axis and the second evaluation parameter is on a second axis, with a predetermined reference, 
 the evaluation value includes at least one of a length of a long axis, a length of a short axis, and an inclination of the long axis of a probability ellipse in the case of plotting the evaluation results of the plurality of briquettes on the graph in which the first evaluation parameter is on the first axis and the second evaluation parameter is on the second axis, 
 the briquetting machine includes two rolls facing each other and a raw material supply unit that supplies a raw material between the two rolls, 
 a recessed portion for manufacturing the briquette is formed on at least one of surfaces of the two rolls, 
 the first evaluation parameter is an apparent density of the briquette, and the second evaluation parameter is any of a compressive strength, a tumbler strength, and a drop strength of the briquette, 
 the setting unit determines whether or not to change pressure, which is applied to a raw material located between the two rolls through the two rolls, as the operation parameter in a case where the evaluation value is the inclination of the long axis, and 
 in a case where the inclination of the long axis is smaller than the predetermined reference, the setting unit adjusts the operating conditions so as to increase the pressure, and in a case where the inclination of the long axis is not smaller than the predetermined reference, the setting unit does not change the pressure. 
 
     
     
       10. A control device of a briquetting machine that operates under set operating conditions to manufacture briquettes, comprising:
 an acquisition unit that acquires evaluation information indicating evaluation results of the plurality of briquettes manufactured under the same manufacturing conditions; and 
 a setting unit that sets the operating conditions based on the evaluation information, 
 wherein in the evaluation information, values of a plurality of measured evaluation parameters are associated with each briquette, 
 the plurality of evaluation parameters include a first evaluation parameter and a second evaluation parameter, 
 the setting unit determines whether or not to change the operating conditions set in advance by comparing an evaluation value, which is based on a distribution of a plot in a case of plotting the evaluation results of the plurality of briquettes on a graph in which the first evaluation parameter is on a first axis and the second evaluation parameter is on a second axis, with a predetermined reference, 
 the evaluation value includes at least one of a length of a long axis, a length of a short axis, and an inclination of the long axis of a probability ellipse in the case of plotting the evaluation results of the plurality of briquettes on the graph in which the first evaluation parameter is on the first axis and the second evaluation parameter is on the second axis, 
 the briquetting machine includes two rolls facing each other and a raw material supply unit that supplies a raw material between the two rolls, 
 a recessed portion for manufacturing the briquette is formed on at least one of surfaces of the two rolls, 
 the first evaluation parameter is any of a compressive strength, a tumbler strength, and a drop strength of the briquette, and the second evaluation parameter is a unit weight of the briquette, 
 the setting unit determines whether or not to change at least one of a rotation speed of each of the two rolls and pressure, which is applied to a raw material located between the two rolls through the two rolls, as the operation parameters in a case where the evaluation value is the inclination of the long axis, and 
 in a case where the inclination of the long axis is larger than the predetermined reference, the setting unit adjusts the operating conditions so as to reduce the rotation speed or increase the pressure, and in a case where the inclination of the long axis is equal or smaller than the predetermined reference and a raw material supply amount per unit time of the raw material supply unit is not an upper limit, the setting unit changes neither the rotation speed nor the pressure.